Flexible Vacation rental, 2 days to 2 weeks FYI

What other systems might give you this flexibility?

I've been learning a lot reading thru the forums. HIVC has a point system that allows vacations at the Holiday Inn Vacation Club to be directly booked 10 months ahead of time at there resorts. Can start any day of the week also. From my understanding this is a real problem when booking vacations outside the box. You do have to think ahead for most of the resorts but in Orlando , or Vegas it would be available closer to the date. I have a membership @ HIVC and rent what I can't use, but found you have to plan ahead to be able to find a vacation. Ex. in March, Myrtle beach is fully booked till Sept. I'm a owner here so I can book a year ahead, but 10 months is a safe time to book. Keep this in mind for your vacations.